Standard&Poor's Ratings Services affirmed its 'AA-/A-1+' rating on the Mayo Clinic's series 2008A bonds. The affirmation reflects a substitution on May 13, 2009, from a Wells Fargo standby bond purchase agreement to self-liquidity, partly supported by a $100 million line of credit from Wells Fargo Bank. The 'AA-' long-term component of the rating reflects the long-term credit strength of the Mayo Clinic, while the 'A-1+' short-term component of the rating reflects the ability of Mayo Clinic to fund, from its own liquidity, any bonds that have been tendered, but not remarketed. Mayo Clinic demonstrates ample and sufficient liquidity and has the procedures necessary to provide liquidity for such tenders. Mayo Clinic's self-liquidity assessment is based on its identification
